IBM pSeries 690 Service Manual page 368

Step 154A-17
Attention: Before replacing the system backplane, call for support.
Replace the system backplane at U1.18-P1.
Step 154A-18
Turn on the power.
Step 154A-19
Did the system stop with the same error code as recorded in "Step 154A-1" on page 346?
No The book or module just replaced was defective. This ends the procedure.
Return the system to its original configuration.
Go to "MAP 0410: Repair Checkout" in the RS/6000 and Eserver pSeries Diagnostic Information
for Multiple Bus Systems.
Yes Go to "Step 154A-20".
Step 154A-20
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 154A-21
Call for support. This ends the procedure.
Step 154A-22
Is the value recorded in "Step 154A-1" on page 346 for word 13 of this error code equal to
0000A218 or 0000A21B?
No Go to "Step 154A-5" on page 346.
Yes Go to "Step 154A-23".
Step 154A-23
Replace the following cards and modules, if present, one at a time:
v First location code item recorded, if any, in "Step 154A-1" on page 346.
v Second location code item recorded, if any, in "Step 154A-1" on page 346.
v Primary I/O Book at U1.18-P1-H2 if not recorded in "Step 154A-1" on page 346.
v Component on which you are trying to turn on the identify LED at the location you selected.
Step 154A-24
Turn on the power.
Step 154A-25
Did the system stop with the same error code as recorded in "Step 154A-1" on page 346?
No The card or module just replaced was defective. This ends the procedure.
Return the system to its original configuration.
Go to "MAP 0410: Repair Checkout" in the RS/6000 and Eserver pSeries Diagnostic Information
for Multiple Bus Systems.
Yes Go to "Step 154A-26".
Step 154A-26
Have all the cards or modules listed in "Step 154A-23" been replaced?
No Go to "Step 154A-2" on page 346.
348 Eserver pSeries 690 Service Guide